butterfly nut
Học thuậtThân thiện
Definition
Noun: A butterfly nut is a type of fastener, specifically a nut with two flat, wing-like projections. These wings allow it to be tightened or loosened by hand using the thumb and forefinger, without the need for a wrench or other tool.
Usage
A butterfly nut is used to secure a bolt or threaded rod. Its primary function is to allow for easy, tool-free adjustment or removal in applications where frequent access is needed or where tools are inconvenient. - It is commonly found on equipment panels, light fixtures, furniture, and in various mechanical assemblies. - The term is often used interchangeably with wing nut, though "butterfly nut" specifically references the wing-like shape.
Examples
Advanced Usage
- Engineering & Design Context: In technical specifications, a butterfly nut might be specified for its hand-operable feature in "quick-release" or "maintenance-friendly" designs.
- Informal Metaphor: Rarely, the term can be used metaphorically to describe something that is easily changed or unfastened.
- Their agreement was held by nothing more than a butterfly nut—a few twists and it would come apart.
Variants and Related Words
- Wing Nut (n.): The most common synonym. A nut with two wings for hand-tightening.
- Thumb Nut (n.): A general term for any nut designed to be turned by hand, which may include butterfly/wing nuts as well as knurled or knurled-head nuts.
- Wing Screw (n.): A screw with a wing-like head, serving a similar hand-tightening purpose but as a screw, not a nut.
Synonyms
- Wing nut
- Thumb nut (in some contexts)
- Hand nut
Antonyms
- Hex Nut: A nut with six flat sides, typically requiring a wrench.
- Lock Nut: A nut designed to resist loosening, often requiring a tool to install/remove.
Related Phrases
- Finger-tighten: To tighten using just the fingers, which is the intended action for a butterfly nut.
- Ensure the cover is finger-tightened using the butterfly nuts.
- Hand-tight: The degree of tightness achievable by hand without tools.
- Screw the butterfly nut on until it is hand-tight.
Noun
- a threaded nut with winglike projections for thumb and forefinger leverage in turning